Oceanography quiz 15 Feb 2021

What best describes the continental shelf?

• a flat underwater valley

• a region of mountains in the deep ocean

• a shallow area of sediment near the shore

• a region with high water pressure

Where is the ocean deepest

• ocean trench

• volcanic island

• abyssal plain

• mid-ocean ridge

Which of these increases as you go deeper in the ocean?

• the number of plants in the water

• the freshness of the water

• the water temperature

• the water pressure

Which of these decreases as you go deeper in the ocean

• water

• salinity

• temperature

• water pressure

What causes tides?

• rotation of the earth

• ocean currents

• magic

• gravitational pull from the moon

Which tide has higher tides

• spring tide

• neap tide

What is the large flat region of the ocean floor called

• ocean trench

• continental shelf

• abyssal plain

• seamount

Which of these is not a zone of the ocean

• twilight zone

• midnight zone

• floor zone

• sunlight zone

What is the only part of the ocean floor without tectonic activity?

• abyssal plain

• continental slope

• continental margin

• seamount

Why is there high salinity in the Mediterranean Ocean

• precipitation

• evaporation

• volcanos

• deposition